toJson method
Implementation
Map<String, dynamic> toJson() {
final json = <String, dynamic>{};
if (this.id != null) {
json[r'id'] = this.id;
} else {
json[r'id'] = null;
}
json[r'title'] = this.title;
json[r'period'] = this.period;
json[r'description'] = this.description;
json[r'price'] = this.price;
json[r'options'] = this.options;
return json;
}